Apple's yearly developer conference should see iOS 8, OS X 10.10, and likely some hardware.
Next-Generation iPhone Battery Joins List of Surfacing Parts
As first disclosed by Gizmodo, the new images show that the next-generation iPhone's battery carries a capacity of 5.25 watt-hours, a nearly 16.5% increase from the 4.51 watt-hour battery in the iPhone 3GS. The Vietnamese leaked prototype, however, carried a 5.00 watt-hour battery.
The site has also posted a photo of the forthcoming iPhone's dock connector and cable, which differ somewhat in appearance from the design used in the iPhone 3G and 3GS.